head-to-head

Google: Gemini 3.5 Flash vs OpenAI: GPT-5.4 Mini

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

Google: Gemini 3.5 Flash OpenAI: GPT-5.4 Mini
Vendorgoogleopenai
Quality Score100100
Benchmark Score53.537.7
Input Price$1.50/M$0.75/M
Output Price$9.00/M$4.50/M
Context Window1,048,576400,000
Max Output65,536128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index53.839.7

Who wins by task?

TaskGoogle: Gemini 3.5 FlashOpenAI: GPT-5.4 Mini
SQL Generation 139 138
Code Review 142 139
Code Completion 119 131
Code Refactoring 144 142
Bug Fixing 146 143
Unit Test Generation 130 128
Code Documentation 134 134
Regex Writing 123 122
CI/CD Pipelines 126 124
Frontend Component Design 128 126
Data Analysis 132 130
ETL Scripting 135 133
JSON Extraction 121 130
Bulk Data Labeling 118 128
OCR / Document Parsing 133 133
Table Extraction from PDFs 133 133
Long-Document Summarization 145 143
Short-Form Summarization 116 124
Blog Post Writing 127 126

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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